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<details class="folding-tag" blue><summary> 点击查看使用工具及版本 </summary>
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              <table>    <tr>        <td align="center" width=150px>Windows</td>        <td align="left">windows11</td>    </tr>    <tr>        <td align="center">Ubuntu</td>        <td align="left">Ubuntu16.04的64位版本</td>      </tr>    <tr>        <td align="center">VMware® Workstation 16 Pro</td>        <td align="left">16.2.3 build-19376536</td>      </tr>    <tr>        <td align="center">SecureCRT</td>        <td align="left">Version 8.7.2 (x64 build 2214)   -   正式版-2020年5月14日</td>      </tr>    <tr>        <td align="center">开发板</td>        <td align="left">正点原子 i.MX6ULL Linux阿尔法开发板</td>      </tr>    <tr>        <td align="center">uboot</td>        <td align="left">NXP官方提供的uboot，NXP提供的版本为uboot-imx-rel_imx_4.1.15_2.1.0_ga(使用的uboot版本为U-Boot 2016.03)</td>      </tr>    <tr>        <td align="center">linux内核</td>        <td align="left">linux-4.15(NXP官方提供)</td>      </tr>    <tr>        <td align="center">STM32开发板</td>        <td align="left">正点原子战舰V3(STM32F103ZET6)</td>      </tr></table>
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<details class="folding-tag" blue><summary> 点击查看本文参考资料 </summary>
              <div class='content'>
              <table>    <tr><td align="center">参考方向  </td><td align="center">参考原文</td></tr>    <tr><td align="left"> Makefile </td><td align="left"><a href="" target="_blank"> 跟我一起写Makefile <i class="fa fa-external-link-alt"></i> </a></td></tr></table>
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              <table>    <tr>        <td align="center">---</td>        <td align="left">--- <a href="" target="_blank">  <i class="fa fa-external-link-alt"></i></a></td>      </tr></table>
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<h1 id="一、-make-命令"><a href="#一、-make-命令" class="headerlink" title="一、 make 命令"></a><font size=3>一、 make 命令</font></h1><p>这部分其实没啥用，不可能记得这么多的，用到的时候可以 man make 这样， linux 就会很贴心的帮我们列出关于 make 的所有命令啦。这部分主要是来自于《跟我一起写 Makefile》。</p>
<ul>
<li>-b 、  -m</li>
</ul>
<p>这两个参数的作用是忽略和其它版本  make  的兼容性。</p>
<ul>
<li>-B  、 –always-make</li>
</ul>
<p>认为所有的目标都需要更新（重编译）。</p>
<ul>
<li>-C &lt;dir&gt;   、 –directory&#x3D;&lt;dir&gt;</li>
</ul>
<p>在读取  Makefile  之前，进入到目录  &lt;dir&gt; ，然后执行  make 。如果有多个 -C 参数， make  的解释是后面的路径以前面的作为相对路径，并以最后的目录作为被指定目录。例如，</p>
<figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br></pre></td><td class="code"><pre><span class="line">make –C ~/a/b –C test</span><br><span class="line"><span class="meta prompt_"># </span><span class="language-bash">等价于</span></span><br><span class="line">make –C ~/a/b/test</span><br></pre></td></tr></table></figure>

<ul>
<li>—debug[&#x3D;&lt;options&gt;]</li>
</ul>
<p>输出  make  的调试信息。如果没有参数，那就是输出最简单 的调试信息，默认是 options&#x3D;b </p>
<details class="folding-tag" blue><summary> 点击查看 options </summary>
              <div class='content'>
              <table>    <tr><td align="center" width=50px>a</td><td align="left">也就是 all，输出所有的调试信息。（会非常的多） </td></tr>    <tr><td align="center" width=50px>b</td><td align="left">也就是 basic，只输出简单的调试信息。即输出不需要重编译的目标。 </td></tr>    <tr><td align="center" width=50px>v</td><td align="left">也就是 verbose，在 b 选项的级别之上。输出的信息包括哪个 makefile 被解析，不需 要被重编译的依赖文件（或是依赖目标）等。</td></tr>    <tr><td align="center" width=50px>i</td><td align="left">也就是 implicit，输出所以的隐含规则。</td></tr>    <tr><td align="center" width=50px>j</td><td align="left">也就是 jobs，输出执行规则中命令的详细信息，如命令的 PID、返回码等。</td></tr>     <tr><td align="center" width=50px>m</td><td align="left">也就是 makefile，输出 make 读取 makefile，更新 makefile，执行 makefile 的信息。</td></tr></table>
              </div>
            </details>

<ul>
<li>-i 、 –ignore-errors</li>
</ul>
<p>在执行时忽略所有规则命令执行的错误。</p>
<ul>
<li>-I &lt;dir&gt;  、 –include-dir&#x3D;&lt;dir&gt;</li>
</ul>
<p>指定一个被包含  Makefile  的搜索目标。可以使用多个 -I 参数来指定多个目录。</p>
<ul>
<li>-j [&lt;jobsnum&gt;]  、 –jobs[&#x3D;&lt;jobsnum&gt;]</li>
</ul>
<p>指同时运行命令的个数。如果没有这个参数， make  运行命令时能运行多少就运行多少。如果有多个 -j 参数，那么仅最后一个 -j 的 jobsnum 才是有效的。（注意这个参数在  MS-DOS  中是无效的）</p>
<ul>
<li>-k  、 –keep-going</li>
</ul>
<p>出错也不停止运行。如果生成一个目标失败了，那么依赖于其上的目标就不会被执行了。 </p>
<ul>
<li>-n 、  –just-print  、 –dry-run  、 –recon</li>
</ul>
<p>仅输出执行过程中的命令序列，但并不执行。 </p>
<ul>
<li>-o &lt;file&gt;  、 –old-file&#x3D;&lt;file&gt;  、 –assume-old&#x3D;&lt;file&gt;</li>
</ul>
<p>指定  &lt;file&gt;  文件不需要重建，即使是它的依赖已经过期；同时不重建此依赖文件的任何目标。注意：此参数不会通过变量  MAKEFLAGS  传递给子目录进程。</p>
<ul>
<li>-p 、 –print-data-base</li>
</ul>
<p>命令执行之前，打印出  make  读取的  Makefile  的所有数据，同时打印出  make  的版本信息。这个参数会让一个简单的  Makefile 都会输出一堆信息。</p>
<p>如果只是想输出信息而不想执行  Makefile ，我们可以使用 make -qp  命令。</p>
<p>如果想查看执行  Makefile 前的预设变量和规则，可以使用 make –p –f &#x2F;dev&#x2F;null 。这个参数输出的信息会包含着你的  Makefile 文件的文件名和行号，所以，用这个参数来调试  Makefile 会是很有用的，特别是当环境变量很复杂的时候。</p>
<ul>
<li>-r  、 –no-builtin-rules</li>
</ul>
<p>禁止  make  使用任何隐含规则。 </p>
<ul>
<li>-R 、  –no-builtin-variabes</li>
</ul>
<p>禁止  make  使用任何作用于变量上的隐含规则。</p>
<ul>
<li>-s 、 –silent  、 –quiet</li>
</ul>
<p>在命令运行时不输出命令（默认状态下， make 会打印所有执行的命令）。</p>
<ul>
<li>-t 、  –touch</li>
</ul>
<p>相当于  UNIX  的  touch  命令，只是把目标的修改日期变成最新的，也就是阻止生成目标的命令运行，防止  make  对所有过时目标文件的重建。</p>
<ul>
<li>–warn-undefined-variables</li>
</ul>
<p>只要  make  发现有未定义的变量，那么就输出警告信息。</p>
<h1 id="二、-make-传参"><a href="#二、-make-传参" class="headerlink" title="二、 make 传参"></a><font size=3>二、 make 传参</font></h1><h2 id="1-传参格式"><a href="#1-传参格式" class="headerlink" title="1.传参格式"></a><font size=3>1.传参格式</font></h2><p>我们在输入 make 命令的时候是可以给相应的 Makefile 传入参数的，格式一般为：</p>
<figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">make name1=value1 name2=value2 ...</span><br></pre></td></tr></table></figure>

<h2 id="2-使用实例"><a href="#2-使用实例" class="headerlink" title="2.使用实例"></a><font size=3>2.使用实例</font></h2><p>我们在 Makefile 文件中添加以下内容：</p>
<figure class="highlight makefile"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br></pre></td><td class="code"><pre><span class="line"><span class="section">main:</span></span><br><span class="line">	@echo <span class="string">&quot;ARCH=<span class="variable">$(ARCH)</span>&quot;</span></span><br><span class="line">	@echo <span class="string">&quot;V=<span class="variable">$(V)</span>&quot;</span></span><br><span class="line">	@echo <span class="string">&quot;name=<span class="variable">$(name)</span>&quot;</span></span><br></pre></td></tr></table></figure>

<p>然后我们在终端执行：</p>
<figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">make ARCH=arm name=qidaink</span><br></pre></td></tr></table></figure>

<p>然后我们就会在终端看到有如下信息输出：</p>
<figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br></pre></td><td class="code"><pre><span class="line">ARCH=arm</span><br><span class="line">V=</span><br><span class="line">name=qidaink</span><br></pre></td></tr></table></figure>


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